When did momondo last update prices for flights from Houston to Islip Long Island Airport?

Prices for flights from Houston to Islip Long Island Airport refresh daily.

How many operators does momondo search for flights from Houston to Islip Long Island Airport?

There is 1 operator available for flights from Houston to Islip Long Island Airport as of January 2026.

How old do you have to be to fly from Houston to Islip Long Island Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Houston to Islip Long Island Airport.

What documentation or ID do you need to fly to Islip Long Island Airport?

The required travel and health documents for your Islip Long Island Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Islip Long Island Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$71 Cheap Flights from Houston to Islip in 2026

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Cheap round-trip flights

Enter your travel dates to find the best prices.

9:03 pm - 9:48 am

IAH

ISP

11h 45m

1 stop

10:43 am - 8:08 pm

ISP

IAH

10h 25m

1 stop

$310Frontier

Fri, Mar 13 - Mon, Mar 16

8:18 pm - 7:38 am

IAH

ISP

10h 20m

1 stop

8:33 am - 6:28 pm

ISP

IAH

10h 55m

1 stop

$355Frontier

Thu, Feb 26 - Sun, Mar 1

9:03 pm - 9:48 am

IAH

ISP

11h 45m

1 stop

5:08 pm - 7:29 am

ISP

IAH

15h 21m

1 stop

$361Frontier

Fri, Mar 27 - Sun, Mar 29

6:18 pm - 7:38 am

IAH

ISP

12h 20m

1 stop

8:23 am - 6:28 pm

ISP

IAH

11h 05m

1 stop

$375Frontier

Thu, Feb 19 - Mon, Feb 23

5:25 am - 2:30 pm

HOU

ISP

8h 05m

1 stop

6:00 am - 12:15 pm

ISP

HOU

7h 15m

1 stop

$385Southwest

Thu, Jun 25 - Mon, Jun 29

6:00 am - 2:30 pm

HOU

ISP

7h 30m

2 stops

6:00 am - 12:15 pm

ISP

HOU

7h 15m

1 stop

$390Southwest

Thu, Jun 25 - Mon, Jun 29

6:18 pm - 7:38 am

IAH

ISP

12h 20m

1 stop

8:21 pm - 7:00 am

ISP

IAH

11h 39m

1 stop

$410Frontier

Thu, Feb 19 - Sun, Feb 22

6:00 am - 2:30 pm

HOU

ISP

7h 30m

2 stops

6:00 am - 1:45 pm

ISP

HOU

8h 45m

2 stops

$420Southwest

Thu, Jun 25 - Mon, Jun 29

8:18 pm - 1:13 pm

IAH

ISP

15h 55m

1 stop

8:01 pm - 7:00 am

ISP

IAH

11h 59m

1 stop

$524Frontier

Tue, Feb 10 - Sun, Feb 15

7:35 am - 7:45 pm

IAH

ISP

11h 10m

1 stop

7:25 am - 2:40 pm

ISP

IAH

8h 15m

1 stop

$1,811Multiple Airlines

Thu, Jun 25 - Mon, Jun 29

Frontier flights from Houston to Islip, New York

Our best Frontier deals on Houston to Islip, New York flight tickets

Frontier

Mar 13

IAH9:03 pmHouston George Bush Intcntl

11h 45m

1 stop

ISP9:48 amIslip Long Island

Mar 16

ISP10:43 amIslip Long Island

10h 25m

1 stop

IAH8:08 pmHouston George Bush Intcntl

$310

Frontier

Jan 24

IAH8:18 pmHouston George Bush Intcntl

11h 22m

1 stop

ISP8:40 amIslip Long Island

Jan 25

ISP7:53 pmIslip Long Island

15h 20m

1 stop

IAH10:13 amHouston George Bush Intcntl

$322

Frontier

Jan 23

IAH11:08 amHouston George Bush Intcntl

6h 30m

1 stop

ISP6:38 pmIslip Long Island

Jan 25

ISP9:25 amIslip Long Island

24h 35m

1 stop

IAH9:00 amHouston George Bush Intcntl

$331

Southwest flights from Houston to Islip, New York

Our best Southwest deals on Houston to Islip, New York flight tickets

Southwest

Jun 25

HOU5:25 amHouston Hobby

8h 05m

1 stop

ISP2:30 pmIslip Long Island

Jun 29

ISP6:00 amIslip Long Island

7h 15m

1 stop

HOU12:15 pmHouston Hobby

$385

Southwest

Jun 25

HOU6:00 amHouston Hobby

7h 30m

2 stops

ISP2:30 pmIslip Long Island

Jun 29

ISP6:00 amIslip Long Island

7h 15m

1 stop

HOU12:15 pmHouston Hobby

$390

Southwest

Jun 25

HOU6:00 amHouston Hobby

7h 30m

2 stops

ISP2:30 pmIslip Long Island

Jun 29

ISP6:00 amIslip Long Island

8h 45m

2 stops

HOU1:45 pmHouston Hobby

$420

Fly from

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Route

Depart

Return

Price

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Fri 3/13

9:03 pm-9:48 am

1 stop11h 45m

Islip Long Island

Mon 3/16

10:43 am-8:08 pm

1 stop10h 25m

$310

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Thu 2/26

8:18 pm-7:38 am

1 stop10h 20m

Islip Long Island

Sun 3/1

8:33 am-6:28 pm

1 stop10h 55m

$355

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Fri 3/27

9:03 pm-9:48 am

1 stop11h 45m

Islip Long Island

Sun 3/29

5:08 pm-7:29 am

1 stop15h 21m

$361

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Thu 2/19

6:18 pm-7:38 am

1 stop12h 20m

Islip Long Island

Mon 2/23

8:23 am-6:28 pm

1 stop11h 05m

$375

HoustonIslip

HOU - ISP

HOUISP

Houston Hobby

Thu 6/25

5:25 am-2:30 pm

1 stop8h 05m

Islip Long Island

Mon 6/29

6:00 am-12:15 pm

1 stop7h 15m

$385

HoustonIslip

HOU - ISP

HOUISP

Houston Hobby

Thu 6/25

6:00 am-2:30 pm

2 stops7h 30m

Islip Long Island

Mon 6/29

6:00 am-12:15 pm

1 stop7h 15m

$390

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Thu 2/19

6:18 pm-7:38 am

1 stop12h 20m

Islip Long Island

Sun 2/22

8:21 pm-7:00 am

1 stop11h 39m

$410

HoustonIslip

HOU - ISP

HOUISP

Houston Hobby

Thu 6/25

6:00 am-2:30 pm

2 stops7h 30m

Islip Long Island

Mon 6/29

6:00 am-1:45 pm

2 stops8h 45m

$420

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Tue 2/10

8:18 pm-1:13 pm

1 stop15h 55m

Islip Long Island

Sun 2/15

8:01 pm-7:00 am

1 stop11h 59m

$524

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Thu 6/25

7:35 am-7:45 pm

1 stop11h 10m

Islip Long Island

Mon 6/29

7:25 am-2:40 pm

1 stop8h 15m

$1,811

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Houston to Islip, New York

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Houston to Islip Long Island?

Frontier and Southwest are the most popular carriers operating from Houston to Islip Long Island

What airlines fly to Islip, New York?

Spirit Airlines, United Airlines and Delta are the top three most popular airlines that fly to Islip, New York from Houston according to our data. Spirit Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Islip, New York. Keep in mind that there are 7 different airlines that fly to Islip, New York on a routine basis, so you have a few additional options to choose from.

Cheap Houston to Islip, New York flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Houston to Islip, New York

Fastest flight time	10h 20m
Direct flights	None

The fastest flight from Houston to Islip, New York takes 10h 20m

There are no direct flights from Houston to Islip, New York. There are no popular flight routes from Houston to Islip, New York.

Search flight deals

How far is Houston to Islip Long Island by plane?
Islip Long Island is 1454.8 mi away from Houston. In terms of flight time, this usually takes a little over 10h 20m.
When did momondo last update prices for flights from Houston to Islip Long Island Airport?
Prices for flights from Houston to Islip Long Island Airport refresh daily.
How many operators does momondo search for flights from Houston to Islip Long Island Airport?
There is 1 operator available for flights from Houston to Islip Long Island Airport as of January 2026.
How old do you have to be to fly from Houston to Islip Long Island Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Houston to Islip Long Island Airport.
What documentation or ID do you need to fly to Islip Long Island Airport?
The required travel and health documents for your Islip Long Island Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Islip Long Island Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Houston to Islip, New York

Compare and see reviews for airlines that fly from Houston to Islip, New York with momondo

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $278	Free Cancellation	Rating 8.0 4,262 reviews		Search Southwest flights

Montauk

Riverhead

Sag Harbor

Southampton

Amagansett

Why use momondo?

Why should I use momondo to find a flight deal from Houston to Islip?

Finding the right flight to Islip from Houston is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Islip quick and easy, saving you time and money.

Can I find flights from Houston to Islip with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Islip from Houston with this policy.

How can momondo help me find flights from Houston to Islip?

momondo helps you find the best flight between Houston and Islip by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Houston to Islip right now. Can momondo alert me if prices change?

Price alerts on flights to Islip from Houston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.